This list includes many of the common large shrub

Shrub

A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

s of Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, as well as the tree

Tree

A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...

s. Many of the trees on this list are introduced as ornamentals or for food and are not common in Canada. Also due to the vast area of Canada, a tree that is common in one area, may be completely absent or unable to grow in another area. In particular many warm-temperate trees can only be grown on the mild Pacific

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 coast (where gardens may contain many additional species not listed here).

See also Provincial tree emblems of Canada for the official trees of the Provinces and Territories

Provinces and territories of Canada

The provinces and territories of Canada combine to make up the world's second-largest country by area. There are ten provinces and three territories...

 of Canada.

Pinophyta

Pinophyta

The conifers, division Pinophyta, also known as division Coniferophyta or Coniferae, are one of 13 or 14 division level taxa within the Kingdom Plantae. Pinophytes are gymnosperms. They are cone-bearing seed plants with vascular tissue; all extant conifers are woody plants, the great majority being...

 (Conifers)

Abies (firs)

• Abies amabilis (Pacific Silver Fir)
• Abies balsamea (Balsam Fir)
• Abies bifolia (Rocky Mountains Subalpine Fir)
• Abies concolor (White Fir) - introduced
• Abies grandis (Grand Fir)
• Abies lasiocarpa (Coast Range Subalpine Fir)
• Abies magnifica (Red Fir) - introduced
• Abies nordmanniana (Nordmann Fir) - introduced
• Abies pinsapo (Spanish Fir) - introduced
• Abies procera (Noble Fir) - introduced

Araucaria

Araucaria

Araucaria is a genus of evergreen coniferous trees in the family Araucariaceae. There are 19 extant species in the genus, with a highly disjunct distribution in New Caledonia , Norfolk Island, eastern Australia, New Guinea, Argentina, Chile, and southern Brazil.-Description:Araucaria are mainly...

• Araucaria araucana
  Araucaria araucana
  Araucaria araucana is an evergreen tree growing to tall with a trunk diameter. The tree is native to central and southern Chile, western Argentina and south Brazil. Araucaria araucana is the hardiest species in the conifer genus Araucaria...
  
  (Monkey-puzzle) - introduced

Callitropsis

Callitropsis

Callitropsis is a genus of cypresses in the family Cupressaceae, with several native to North America and one native to Vietnam in southeast Asia....

• Callitropsis nootkatensis
  Callitropsis nootkatensis
  Nootka Cypress , formerly Cupressus nootkatensis, Xanthocyparis nootkatensis or Chamaecyparis nootkatensis, is a cypress with a chequered taxonomic and nomenclatural history. This species goes by many common names including Nootka Cypress, Yellow Cypress, and Alaska Cypress...
  
  (Nootka Cypress, Yellow-cedar) (previously included in Chamaecyparis)

Cedrus (cedars)

• Cedrus atlantica (Atlas Cedar) - introduced
• Cedrus deodara (Deodar Cedar) - introduced
• Cedrus libani (Lebanon Cedar) - introduced

Chamaecyparis

Chamaecyparis

Chamaecyparis is a genus of conifers in the cypress family Cupressaceae, native to eastern Asia and western and eastern North America. In the nursery trade it is often incorrectly known as "false cypress" for lack of other common name, so as to distinguish it from other similar genera bearing...

• Chamaecyparis lawsoniana
  Chamaecyparis lawsoniana
  Chamaecyparis lawsoniana is a cypress in the genus Chamaecyparis, family Cupressaceae, known by the name Lawson's Cypress in the horticultural trade, or Port Orford-cedar in its native range . C...
  
  (Lawson's Cypress) - introduced
• Chamaecyparis obtusa
  Chamaecyparis obtusa
  Chamaecyparis obtusa is a species of cypress native to central Japan.It is a slow-growing tree which grows to 35 m tall with a trunk up to 1 m in diameter. The bark is dark red-brown...
  
  (Hinoki Cypress) - introduced
• Chamaecyparis pisifera
  Chamaecyparis pisifera
  Chamaecyparis pisifera Chamaecyparis pisifera Chamaecyparis pisifera (Sawara Cypress or Sawara is a species of false cypress, native to central and southern Japan, on the islands of Honshū and Kyūshū....
  
  (Sawara Cypress) - introduced

Cryptomeria

Cryptomeria

Cryptomeria is a monotypic genus of conifer in the cypress family Cupressaceae formerly belonging to the family Taxodiaceae; it includes only one species, Cryptomeria japonica . It is endemic to Japan, where it is known as Sugi...

• Cryptomeria japonica (Sugi) - introduced

Cupressus

Cupressus

The genus Cupressus is one of several genera within the family Cupressaceae that have the common name cypress; for the others, see cypress. It is considered a polyphyletic group...

• Cupressus arizonica
  Cupressus arizonica
  Cupressus arizonica, the Arizona Cypress, is a species of cypress native to the southwest of North America, in the United States in Arizona, southwest New Mexico, southern California, and the Chisos Mountains of west Texas, and in Mexico in Coahuila, Chihuahua, Durango, Tamaulipas, Zacatecas and...
  
  (Arizona Cypress) - introduced
• Cupressus macrocarpa
  Cupressus macrocarpa
  Cupressus macrocarpa, commonly known as Monterey Cypress or Macrocarpa, is a species of cypress that is endemic to the Central Coast of California. In the wild, the species is confined to two small populations, near Monterey and Carmel, California. These two small populations represent what was...
  
  (Monterey Cypress) - introduced

Juniperus (junipers)

• Juniperus chinensis
  Juniperus chinensis
  Juniperus chinensis grows as a shrub or tree with a very variable in shape, reaching 1-20 m tall. This native of northeast Asia grows in China, Mongolia, Japan, Korea and the southeast of Russia.-Growth:...
  
  (Chinese Juniper) - introduced
• Juniperus communis
  Juniperus communis
  Juniperus communis, the Common Juniper, is a species in the genus Juniperus, in the family Cupressaceae. It has the largest range of any woody plant, throughout the cool temperate Northern Hemisphere from the Arctic south in mountains to around 30°N latitude in North America, Europe and Asia.-...
  
  (Common Juniper)
• Juniperus horizontalis
  Juniperus horizontalis
  Juniperus horizontalis is a low-growing shrubby juniper native to northern North America, throughout most of Canada from Yukon east to Newfoundland, and in the United States in Alaska, and locally from Montana east to Maine, reaching its furthest south in Wyoming and northern Illinois.It lives up...
  
  (Creeping Juniper)
• Juniperus sabina
  Juniperus sabina
  Juniperus sabina is a species of juniper native to the mountains of central and southern Europe and western and central Asia, from Spain east to eastern Siberia, typically growing at altitudes of 1,000-3,300 m....
  
  (Savin Juniper) - introduced
• Juniperus scopulorum
  Juniperus scopulorum
  Juniperus scopulorum is a species of juniper native to western North America, in Canada in British Columbia and southwest Alberta, in the United States from Washington east to North Dakota, south to Arizona and also locally western Texas, and northernmost Mexico from Sonora east to Coahuila...
  
  (Rocky Mountain jumper)
• Juniperus virginiana
  Juniperus virginiana
  Juniperus virginiana is a species of juniper native to eastern North America, from southeastern Canada to the Gulf of Mexico, east of the Great Plains...
  
  (Eastern Juniper)

Larix (larches)

• Larix decidua (European Larch) - introduced
• Larix gmelinii (Dahurian Larch) - introduced
• Larix kaempferi (Japanese Larch) - introduced
• Larix laricina (Tamarack Larch)
• Larix lyallii (Subalpine Larch)
• Larix occidentalis (Western Larch)
• Larix sibirica (Siberian Larch) - introduced

Metasequoia

Metasequoia

Metasequoia is a fast-growing, deciduous tree, and the sole living species, Metasequoia glyptostroboides, is one of three species of conifers known as redwoods. It is native to the Sichuan-Hubei region of China. Although the least tall of the redwoods, it grows to at least 200 feet in height...

• Metasequoia glyptostroboides
  Metasequoia glyptostroboides
  Metasequoia glyptostroboides, the dawn redwood, is a fast-growing, critically endangered deciduous conifer tree, sole living species of the genus Metasequoia, and one of three species of conifers known as redwoods. It is native to the Sichuan-Hubei region of China...
  
  (Dawn Redwood) - introduced

Picea (spruces)

• Picea abies (Norway Spruce) - introduced
• Picea engelmannii (Engelmann Spruce)
• Picea glauca (White Spruce)
• Picea mariana (Black Spruce)
• Picea omorika (Serbian Spruce) - introduced
• Picea pungens (Colorado Spruce) - introduced
• Picea rubens (Red Spruce)
• Picea sitchensis (Sitka Spruce)

Pinus (pines)

• Pinus albicaulis (Whitebark Pine)
• Pinus aristata (Bristlecone Pine) - introduced
• Pinus banksiana (Jack Pine)
• Pinus contorta subsp. contorta Shore Pine
• Pinus contorta subsp. latifolia Lodgepole Pine
  Lodgepole Pine
  Lodgepole Pine, Pinus contorta, also known as Shore Pine, is a common tree in western North America. Like all pines, it is evergreen.-Subspecies:...
  
  
• Pinus flexilis (Limber Pine)
• Pinus monticola (Western White Pine)
• Pinus mugo (Mountain Pine) - introduced
• Pinus nigra (European Black Pine) or Austrian Pine - introduced
• Pinus ponderosa (Ponderosa Pine)
• Pinus resinosa (Red Pine)
• Pinus rigida (Pitch Pine)
• Pinus strobus (Eastern White Pine)
• Pinus sylvestris (Scots Pine) - introduced

Platycladus

Platycladus

Platycladus is a distinct genus of evergreen coniferous tree in the cypress family Cupressaceae, containing only one species, Platycladus orientalis, also known as Chinese Arborvitae or Biota. It is endemic to Northwestern China...

• Platycladus orientalis (Chinese Arborvitae) (previously known as Thuja orientalis) - introduced

Pseudotsuga

• Pseudotsuga menziesii subsp. menziesii (Coast Douglas-fir
  Coast Douglas-fir
  Pseudotsuga menziesii, known as Douglas-fir, Oregon Pine, or Douglas spruce, is an evergreen conifer species native to western North America. Its variety Pseudotsuga menziesii var. menziesii, also known as coast Douglas-fir grows in the coastal regions, from west-central British Columbia, Canada...
  
  )
• Pseudotsuga menziesii subsp. glauca (Rocky Mountain Douglas-fir
  Rocky Mountain Douglas-fir
  The Rocky Mountain Douglas-fir, Pseudotsuga menziesii subsp. glauca, is an evergreen conifer native to the interior mountainous regions of western North America, from central British Columbia and southwest Alberta in Canada southward through the United States to the far north of Mexico...
  
  )

Sciadopitys

Sciadopitys

The Koyamaki , or Japanese Umbrella-pine, is a unique conifer endemic to Japan. It is the sole member of the family Sciadopityaceae and genus Sciadopitys, a living fossil with no close relatives, and known in the fossil record for about 230 million years.Its genus name comes from the Greek prefix...

• Sciadopitys verticillata (Umbrella-pine) - introduced

Sequoia

Sequoia (genus)

Sequoia is a genus of redwood coniferous trees in the Sequoioideae subfamily, of the Cupressaceae family. The only extant species of the genus is the Sequoia sempervirens in the Northern California coastal forests ecoregion of Northern California and Southern Oregon in the United States...

• Sequoia sempervirens (Coast Redwood) - introduced

Sequoiadendron

Sequoiadendron

Sequoiadendron giganteum is the sole living species in the genus Sequoiadendron, and one of three species of coniferous trees known as redwoods, classified in the family Cupressaceae in the subfamily Sequoioideae, together with Sequoia sempervirens and...

• Sequoiadendron giganteum (Giant Sequoia) - introduced

Taxodium

Taxodium

Taxodium is a genus of one to three species of extremely flood-tolerant conifers in the cypress family, Cupressaceae...

(cypresses)

• Taxodium distichum
  Taxodium distichum
  Taxodium distichum is a species of conifer native to the southeastern United States.-Characteristics:...
  
  (Baldcypress) - introduced

Taxus

Taxus

Taxus is a genus of yews, small coniferous trees or shrubs in the yew family Taxaceae. They are relatively slow-growing and can be very long-lived, and reach heights of 1-40 m, with trunk diameters of up to 4 m...

(yews)

• Taxus baccata
  Taxus baccata
  Taxus baccata is a conifer native to western, central and southern Europe, northwest Africa, northern Iran and southwest Asia. It is the tree originally known as yew, though with other related trees becoming known, it may be now known as the English yew, or European yew.-Description:It is a small-...
  
  (English Yew) - introduced
• Taxus brevifolia
  Taxus brevifolia
  Taxus brevifolia is a conifer native to the Pacific Northwest of North America. It ranges from southernmost Alaska south to central California, mostly in the Pacific Coast Ranges, but with an isolated disjunct population in southeast British Columbia, most notably occurring on Zuckerberg Island...
  
  (Western Yew)
• Taxus canadensis
  Taxus canadensis
  Taxus canadensis is a conifer native to central and eastern North America, thriving in swampy woods, ravines, riverbanks and on lake shores. Locally called simply "Yew", this species is also referred to as American Yew or Ground-hemlock.Most of its range is well north of the Ohio River...
  
  (Canada Yew)
• Taxus cuspidata
  Taxus cuspidata
  Taxus cuspidata is a member of the genus Taxus, native to Japan, Korea, northeast China and the extreme southeast of Russia....
  
  (Japanese Yew) - introduced

Thuja

Thuja

Thuja is a genus of coniferous trees in the Cupressaceae . There are five species in the genus, two native to North America and three native to eastern Asia...

(thujas)

• Thuja occidentalis
  Thuja occidentalis
  Thuja occidentalis is an evergreen coniferous tree, in the cypress family Cupressaceae, which is widely cultivated for use as an ornamental plant known as American Arbor Vitae. The endemic occurrence of this species is a northeastern distribution in North America...
  
  (Eastern Arborvitae)
• Thuja plicata
  Thuja plicata
  Thuja plicata, commonly called Western or pacific red cedar, giant or western arborvitae, giant cedar, or shinglewood, is a species of Thuja, an evergreen coniferous tree in the cypress family Cupressaceae native to western North America...
  
  (Western Redcedar)

Tsuga

Tsuga

Tsuga is a genus of conifers in the family Pinaceae. The common name hemlock is derived from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock....

(hemlocks)

• Tsuga canadensis (Eastern Hemlock)
• Tsuga heterophylla (Western Hemlock)
• Tsuga mertensiana (Mountain Hemlock)

Magnoliophyta (Broadleaves)

Acer (maples)

• Acer circinatum (Vine maple)
• Acer x freemanii (Freeman's maple) (hybrid red maple x silver maple)
• Acer ginnala (Amur maple) - introduced
• Acer glabrum (Douglas maple)
• Acer macrophyllum (Bigleaf maple)
• Acer negundo
  Acer negundo
  Acer negundo is a species of maple native to North America. Box Elder, Boxelder Maple, and Maple Ash are its most common names in the United States...
  
  (Manitoba maple or boxelder)
• Acer nigrum (Black maple)
• Acer palmatum
  Acer palmatum
  Acer palmatum, called Japanese Maple or Smooth Japanese Maple is a species of woody plant native to Japan, North Korea, South Korea, China, eastern Mongolia, and southeast Russia. Many different cultivars of this maple have been selected and they are grown worldwide for their attractive leaf...
  
  (Japanese maple) - introduced
• Acer pensylvanicum (Striped maple)
• Acer platanoides (Norway maple) - introduced
• Acer pseudoplatanus (Sycamore maple) - introduced
• Acer rubrum (Red maple)
• Acer saccharinum (Silver maple)
• Acer saccharum (Sugar maple)
• Acer spicatum (Mountain maple)

Aesculus

Aesculus

The genus Aesculus comprises 13-19 species of woody trees and shrubs native to the temperate northern hemisphere, with 6 species native to North America and 7-13 species native to Eurasia; there are also several hybrids. Species are deciduous or evergreen...

(buckeyes and horse-chestnuts)

• Aesculus x carnea (Red Horse-chestnut) - introduced
• Aesculus glabra (Ohio Buckeye)
• Aesculus hippocastanum (Common Horse-chestnut) - introduced

Ailanthus

Ailanthus

Ailanthus is a genus of trees belonging to the family Simaroubaceae, in the order Sapindales . The genus is native from east Asia south to northern Australasia....

• Ailanthus altissima (Ailanthus) - introduced

Alnus (alders)

• Alnus glutinosa (Black alder) - introduced
• Alnus incana (Speckled alder)
• Alnus rubra (Red alder)
• Alnus serrulata
  Alnus serrulata
  Alnus serrulata, the hazel alder,or smooth alder is a thicket-forming shrub in the family Betulaceae. It is native to eastern North America and can be found found from western Nova Scotia and southern New Brunswick south to Florida and Texas....
  
  (Hazel alder)
• Alnus viridis (Green alder)

Amelanchier (serviceberries)

• Amelanchier alnifolia (Juneberry or Saskatoon berry)
• Amelanchier arborea (Downy serviceberry)
• Amelanchier bartramiana
  Amelanchier bartramiana
  Amelanchier bartramiana is a species of serviceberry. Common names include mountain serviceberry, Bartram's serviceberry, mountain juneberry, Bartram juneberry, and the oblongfruit serviceberry....
  
  (Mountain serviceberry)
• Amelanchier florida (Pacific serviceberry)
• Amelanchier laevis
  Amelanchier laevis
  Amelanchier laevis is a small tree, growing up to 9m. The fruit, which are pomes, are edible and can be eaten raw or cooked. The fruit has a sweet flavor. The bark can be made into a herbal medicine for expectant mothers. It is a deciduous tree...
  
  (Smooth serviceberry)
• Amelanchier sanguinea
  Amelanchier sanguinea
  Amelanchier sanguinea, known as red-twigged shadbush or roundleaf serviceberry, is a shrub native to eastern North America. It can grow up to 3 metres tall, and has edible sweet-flavored fruits that are red when young and become purple or dark-blue when they ripen. Like all Amelanchier fruit, these...
  
  (Roundleaf serviceberry)

Aralia

Aralia

Aralia , or Spikenard, is a genus of the plant family Araliaceae, consisting of 68 accepted species of deciduous or evergreen trees, shrubs, and rhizomatous herbaceous perennials. The genus is native to Asia and the Americas, with most species occurring in mountain woodlands...

• Aralia elata
  Aralia elata
  Aralia elata or Japanese Angelica-tree is a woody plant belonging to the Aralia family .-Description:It is an upright deciduous small tree or shrub growing up to 6 m in height, native to eastern Russia, China, Korea, and Japan....
  
  (Japanese angelica-tree) - introduced

Arbutus

Arbutus

Arbutus is a genus of at least 14 species of flowering plants in the family Ericaceae, native to warm temperate regions of the Mediterranean, western Europe, and North America.-Description:...

• Arbutus menziesii (Pacific Madrone)

Asimina

• Asimina triloba
  Asimina triloba
  Asimina triloba, the pawpaw, paw paw, paw-paw, or common pawpaw, is a species of Asimina in the same plant family as the custard-apple, cherimoya, sweetsop, ylang-ylang and soursop...
  
  (Pawpaw)

Betula (birches)

• Betula alleghaniensis (Yellow Birch)
• Betula cordifolia
  Betula cordifolia
  Betula cordifolia is a birch species native to Eastern Canada and the North Eastern United States. Until recently it was considered a variety of Betula papyrifera , with which it shares many characteristics, and it was classified as B...
  
  (Mountain Paper Birch)
• Betula kenaica (Kenai Paper Birch)
• Betula lenta (Cherry Birch)
• Betula neoalaskana (Alaska Paper Birch)
• Betula occidentalis
  Betula occidentalis
  Betula occidentalis is a species of birch native to western North America, in Canada from Yukon east to western Ontario and southwards, and in the United States from eastern Washington east to western North Dakota, and south to eastern California, northern Arizona and northern New Mexico, and also...
  
  (Water Birch)
• Betula papyrifera (Paper Birch)
• Betula pendula (Silver Birch) - introduced
• Betula populifolia (Gray Birch)

Caragana

Caragana

Caragana is a genus of about 80 species of flowering plants in the family Fabaceae, native to Asia and eastern Europe.They are shrubs or small trees growing 1-6 m tall...

• Caragana arborescens
  Caragana arborescens
  Caragana arborescens, or Caragana or Siberian peashrub, is a species of legume. It is a perennial shrub growing to heights of 12 feet or more. Typically, it has a moderate to fast growth rate, being able to grow one to three feet during the first year after trimming. The plant is native to Siberia...
  
  (Siberian pea-tree) - introduced

Carpinus (hornbeams)

• Carpinus betulus (European Hornbeam) - introduced
• Carpinus caroliniana (American Hornbeam)

Carya

Hickory

Trees in the genus Carya are commonly known as hickory, derived from the Powhatan language of Virginia. The genus includes 17–19 species of deciduous trees with pinnately compound leaves and big nuts...

(hickories)

• Carya cordiformis (Bitternut Hickory)
• Carya glabra (Pignut Hickory)
• Carya laciniosa (Shellbark Hickory)
• Carya ovata (Shagbark Hickory)

Castanea

Chestnut

Chestnut , some species called chinkapin or chinquapin, is a genus of eight or nine species of deciduous trees and shrubs in the beech family Fagaceae, native to temperate regions of the Northern Hemisphere. The name also refers to the edible nuts they produce.-Species:The chestnut belongs to the...

(chestnuts)

• Castanea dentata (American Chestnut)
• Castanea mollissima
  Castanea mollissima
  Castanea mollissima is a member of the family Fagaceae, and a species of chestnut native to China.- Description :...
  
  (Chinese Chestnut) - introduced

Catalpa

Catalpa

Catalpa, commonly called catalpa or catawba, is a genus of flowering plants in the trumpet vine family, Bignoniaceae, native to warm temperate regions of North America, the Caribbean, and East Asia....

(catalpas)

• Catalpa bignonioides (Southern catalpa) - introduced
• Catalpa ovata
  Catalpa ovata
  Catalpa ovata, the yellow catalpa or Chinese catalpa , is a pod-bearing tree native to China. Compared to C. speciosa, it is much smaller, typically reaching heights between 20 and 30 feet. The inflorescences form bunches of creamy white flowers with distinctly yellow tinging; individual flowers...
  
  (Japanese catalpa) - introduced
• Catalpa speciosa (Northern catalpa) - introduced

Celtis (hackberries)

• Celtis occidentalis
  Celtis occidentalis
  Celtis occidentalis, commonly known as the Common hackberry, is a medium-size deciduous tree native to North America. It is also known as the nettletree, beaverwood, northern hackberry, and American hackberry...
  
  (Hackberry)
• Celtis tenuifolia
  Celtis tenuifolia
  Celtis tenuifolia, the Dwarf Hackberry or Georgia Hackberry is a shrub or small tree 2 to 12 meters high. It is native to eastern North America, but is very uncommon north of the Ohio River...
  
  (Dwarf hackberry)

Cephalanthus

Cephalanthus

Cephalanthus is a genus of flowering plants in the madder family, Rubiaceae. Different authorities accept between six and 15 species, which are commonly known as Buttonbushes. Cephalanthus occidentalis is native to the southeastern United States. The others occur in tropical regions of the...

• Cephalanthus occidentalis
  Cephalanthus occidentalis
  Cephalanthus occidentalis is a species of flowering plant in the coffee family, Rubiaceae, that is native to eastern and southern North America. Common names include Buttonbush, Common Buttonbush, Button-willow and Honey-bells....
  
  (Button-bush))

Cercidiphyllum

• Cercidiphyllum japonicum
  Cercidiphyllum japonicum
  Cercidiphyllum japonicum, known as the Japanese Judas-tree, is a species of flowering tree in the Cercidiphyllaceae family that commonly goes by the name Katsura tree. It is native to China and Japan. The tree is deciduous and grows to 40 to 60 feet. Its leaves are round. The tree flowers in March...
  
  (Katsura-tree) - introduced

Cercis

Cercis

Cercis , is a genus of about 10 species in the subfamily Caesalpinioideae of the pea family Fabaceae, native to warm-temperate regions. It contains small deciduous trees or large shrubs commonly known as Redbuds...

• Cercis canadensis (Redbud)

Cladrastis

Cladrastis

Cladrastis kentukea, the Kentucky Yellowwood or American Yellowwood , is a species of Cladrastis native to the Southeastern United States, with a restricted range from western North Carolina west to eastern Oklahoma, and from southern Missouri and Indiana south to central Alabama...

• Cladrastis kentukea (Yellow-wood) - introduced

Cornus

Dogwood

The genus Cornus is a group of about 30-60 species of woody plants in the family Cornaceae, commonly known as dogwoods. Most dogwoods are deciduous trees or shrubs, but a few species are nearly herbaceous perennial subshrubs, and a few of the woody species are evergreen...

(dogwoods)

• Cornus alternifolia (Alternate-leaved dogwood)
• Cornus florida (Flowering Dogwood)
• Cornus kousa (Kousa Dogwood) - introduced
• Cornus mas (European Cornel) - introduced
• Cornus nuttallii (Pacific Dogwood)

Corylus (hazels )

• Corylus americana
  Corylus americana
  Corylus americana, the American Hazelnut, is a species of the genus Corylus that is native to eastern North America.It is a medium to large shrub that under some conditions can take the form of a small tree...
  
  (American Hazel)
• Corylus avellana
  Corylus avellana
  Corylus avellana, the Common Hazel, is a species of hazel native to Europe and western Asia, from the British Isles south to Iberia, Greece, Turkey and Cyprus, north to central Scandinavia, and east to the central Ural Mountains, the Caucasus, and northwestern Iran. It is an important component of...
  
  (Common hazel) - introduced
• Corylus colurna (Turkish Hazel) - introduced
• Corylus cornuta (Beaked Hazel)
• Corylus maxima (Filbert) - introduced

Cotinus

• Cotinus coggygria (Smokebush) - introduced

Crataegus

Crataegus

Crataegus , commonly called hawthorn or thornapple, is a large genus of shrubs and trees in the rose family, Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia and North America. The name hawthorn was originally applied to the species native to northern Europe,...

(Hawthorns) - too many species to list.

Elaeagnus

Elaeagnus

Elaeagnus , silverberry or oleaster, is a genus of about 50–70 species of flowering plants in the family Elaeagnaceae.The vast majority of the species are native to temperate and subtropical regions of Asia. Elaeagnus triflora extends from Asia south into northeastern Australia, while E...

• Elaeagnus angustifolia
  Elaeagnus angustifolia
  Elaeagnus angustifolia, commonly called silver berry, oleaster, Russian olive, or wild olive, is a species of Elaeagnus, native to western and central Asia, from southern Russia and Kazakhstan to Turkey and Iran...
  
  (Russian-olive) - introduced
• Elaeagnus commutata
  Elaeagnus commutata
  Elaeagnus commutata , is a species of Elaeagnus native to western and boreal North America, from southern Alaska through British Columbia east to Quebec, south to Utah, and across the upper Midwestern United States to South Dakota and western Minnesota...
  
  (Silverberry)

Euonymus

Euonymus

Euonymus , often called spindle or spindle tree, is a genus of flowering plants in the staff vine family, Celastraceae. It comprises about 170–180 species of deciduous and evergreen shrubs and small trees...

(Euonymus)

• Euonymus alatus
  Euonymus alatus
  Euonymus alatus, known variously as Winged Spindle, Winged Euonymus or Burning Bush, is a deciduous shrub native to eastern Asia, in central and northern China, Japan, and Korea. The shrub grows to 2.5 m tall , often wider than tall...
  
  (Winged euonymus) - introduced
• Euonymus atropurpureus (Burning-bush) euonymus
• Euonymus europaeus (European spindle) - introduced
• Euonymus fortunei
  Euonymus fortunei
  Euonymus fortunei, also commonly known as winter creeper or wintercreeper and Fortune's spindle is a species of Euonymus native to east Asia, including China, Korea, Philippines and Japan....
  
  (Winter-creeper euonymus) - introduced

Fagus

Beech

Beech is a genus of ten species of deciduous trees in the family Fagaceae, native to temperate Europe, Asia and North America.-Habit:...

(beeches)

• Fagus grandifolia (American Beech)
• Fagus sylvatica (European Beech) - introduced

Fraxinus (ashes)

• Fraxinus americana (White Ash)
• Fraxinus excelsior (European Ash) - introduced
• Fraxinus latifolia (Oregon Ash)
• Fraxinus nigra
  Fraxinus nigra
  Fraxinus nigra is a species of Fraxinus native to much of eastern Canada and the northeastern United States, from western Newfoundland west to southeastern Manitoba, and south to Illinois and northern Virginia....
  
  (Black Ash)
• Fraxinus pennsylvanica (Green Ash)
• Fraxinus profunda
  Fraxinus profunda
  Fraxinus profunda is a species of Fraxinus native to eastern North America, primarily in the United States, with a scattered distribution on the Atlantic coastal plain and interior lowland river valleys from southern Maryland northwest to Indiana, southeast to northern Florida, and southwest to...
  
  (Pumpkin Ash)
• Fraxinus quadrangulata (Blue Ash)

Gleditsia

Gleditsia

Gleditsia is a genus of locust trees in the family Fabaceae, subfamily Caesalpinioideae, native to North America and Asia. The Latin name commemorates Johann Gottlieb Gleditsch, director of the Berlin Botanical Gardens, who died in 1786....

• Gleditsia triacanthos (Honey-locust)

Gymnocladus

Gymnocladus

Gymnocladus is a small genus of leguminous trees.There are three species:*Gymnocladus burmanicus*Gymnocladus chinensis - soap tree...

• Gymnocladus dioicus (Kentucky coffee-tree)

Hamamelis

• Hamamelis virginiana
  Hamamelis virginiana
  Hamamelis virginiana is a species of Witch-hazel native to eastern North America, from Nova Scotia west to Minnesota, and south to central Florida to eastern Texas....
  
  (Witch-hazel)

Hippophae

• Hippophae rhamnoides
  Hippophae rhamnoides
  Hippophae rhamnoides, the common sea-buckthorn, is a deciduous shrub species in the genus Hippophae.Common Sea-buckthorn branches are dense, stiff, and very thorny. The leaves are a distinct pale silvery-green, lanceolate, 3-8 cm long and less than 7 mm broad. It is dioecious, with male and female...
  
  (Sea-buckthorn) - introduced

Ilex (hollies)

• Ilex aquifolium (English Holly) - introduced
• Ilex mucronata (Mountain Holly; syn. Nemopanthus mucronatus)
• Ilex opaca (American Holly) - introduced
• Ilex verticillata (Common Winterberry)

Juglans (walnuts)

• Juglans cinerea (Butternut)
• Juglans nigra (Black Walnut)
• Juglans regia (Persian Walnut) - introduced

Laburnum

Laburnum

Laburnum is a genus of two species of small trees in the subfamily Faboideae of the pea family Fabaceae, Laburnum anagyroides and L. alpinum . They are native to the mountains of southern Europe from France to the Balkan Peninsula...

• Laburnum anagyroides
  Laburnum anagyroides
  Laburnum anagyroides is a species of small deciduous trees or large shrubs up to 7 m tall in the genus Laburnum, native to Central and Southern Europe. It is a popular ornamental plant, along with the other species in the genus, L. alpinum, and especially the hybrid between them, L. × watereri. L...
  
  (Laburnum) - introduced

Liquidambar

• Liquidambar styraciflua (Sweetgum) - introduced

Liriodendron

Liriodendron

Liriodendron is a genus of two species of characteristically large deciduous trees in the magnolia family .These trees are widely known by the common name tulip tree or tuliptree for their large flowers superficially resembling tulips, but are closely related to magnolias rather than lilies, the...

• Liriodendron tulipifera
  Liriodendron tulipifera
  Liriodendron tulipifera, commonly known as the tulip tree, American tulip tree, tuliptree, tulip poplar or yellow poplar, is the Western Hemisphere representative of the two-species genus Liriodendron, and the tallest eastern hardwood...
  
  (Tulip tree)

Maclura

Maclura

Maclura is a genus of flowering plants in the mulberry family, Moraceae. It includes the inedible Osage-orange, which is used as mosquito repellent and grown throughout the United States as a hedging plant.- Species :* Maclura africana...

• Maclura pomifera (Osage-orange) - introduced

Magnolia

Magnolia

Magnolia is a large genus of about 210 flowering plant species in the subfamily Magnolioideae of the family Magnoliaceae. It is named after French botanist Pierre Magnol....

(magnolias)

• Magnolia acuminata (Cucumber tree)
• Magnolia x soulangeana (Saucer magnolia) - introduced

Malus

Malus

Malus , the apples, are a genus of about 30–35 species of small deciduous trees or shrubs in the family Rosaceae. Other studies go as far as 55 species including the domesticated Orchard Apple, or Table apple as it was formerly called...

(apples)

• Malus baccata
  Malus baccata
  Malus baccata is a species of apple known by the common names Siberian crabapple, Siberian crab, Manchurian crab apple and Chinese crab apple. It is native to most of Asia, but is also grown elsewhere as an ornamental tree and for rootstock. It is used for bonsai in Japan...
  
  (Siberian crab apple) - introduced
• Malus coronaria
  Malus coronaria
  Malus coronaria, also known by the names sweet crabapple or garland crab, is a North American species of Malus . It often is a bushy shrub with rigid, contorted branches, but frequently becomes a small tree with a broad open head. It prefers rich moist soil and is most abundant east of the...
  
  (Wild crab apple)
• Malus fusca
  Malus fusca
  Malus fusca is a species of crabapple. It is native to western North America from Alaska to California, where it grows in coniferous forests. The fruits are small round apple-shaped pomes....
  
  (Pacific crab apple)
• Malus sylvestris
  Malus sylvestris
  Malus sylvestris, the European wild apple, is a species of Malus , native to Europe from as far south as Spain, Italy and Greece to as far north as Scandinavia and Russia. Its scientific name means "forest apple", and the truly wild tree has thorns.In the past, M. sylvestris was thought to be an...
  
  (Common apple) - introduced

Morus

Mulberry

Morus is a genus of flowering plants in the family Moraceae. The 10–16 species of deciduous trees it contains are commonly known as Mulberries....

(mulberries)

• Morus alba (White Mulberry) - introduced
• Morus rubra (Red Mulberry)

Myrica

Myrica

Myrica is a genus of about 35–50 species of small trees and shrubs in the family Myricaceae, order Fagales. The genus has a wide distribution, including Africa, Asia, Europe, North America and South America, and missing only from Australasia...

• Myrica californica
  Myrica californica
  Myrica californica Myrica californica Myrica californica (California Bayberry, California Wax Myrtle or Pacific Wax Myrtle; syn. Gale californica (Cham. & Schltdl.) Greene, Morella californica (Cham...
  
  (Pacific bayberry)

Nemopanthus – see Ilex

Nyssa

Tupelo

The tupelo , black gum, or pepperidge tree, genus Nyssa , is a small genus of about 9 to 11 species of trees with alternate, simple leaves...

(tupelos)

• Nyssa sylvatica (Black tupelo)

Ostrya

Ostrya

Ostrya is a genus of eight to ten small deciduous trees belonging to the birch family Betulaceae. Its common name is Hophornbeam in American English and Hop-hornbeam in British English. It may also be called ironwood, a name shared with a number of other plants.The genus is native in southern...

• Ostrya virginiana
  Ostrya virginiana
  Ostrya virginiana , is a species of Ostrya native to eastern North America, from Nova Scotia west to southern Manitoba and eastern Wyoming, southeast to northern Florida and southwest to eastern Texas and northeastern Mexico...
  
  (American hornbeam or Ironwood)

Phellodendron

Phellodendron

Phellodendron or Cork-tree, is a genus of deciduous trees in the family Rutaceae, native to east and northeast Asia. It has leathery, pinnate leaves and yellow, clumped flowers. The name refers to the thick and corky bark of some species in the genus.-Cultivation and uses:As an ornamental plant,...

• Phellodendron amurense
  Phellodendron amurense
  Phellodendron amurense Rupr. is a species of tree in the family Rutaceae, commonly called the Amur cork tree. It is a major source of huáng bò , one of the 50 fundamental herbs used in traditional Chinese medicine...
  
  (Amur cork-tree) - introduced

Platanus

Platanus

Platanus is a small genus of trees native to the Northern Hemisphere. They are the sole living members of the family Platanaceae....

(planes)

• Platanus x acerifolia (London plane) - introduced
• Platanus occidentalis (American sycamore)

Populus

Poplar

Populus is a genus of 25–35 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere. English names variously applied to different species include poplar , aspen, and cottonwood....

(poplar

Poplar

Populus is a genus of 25–35 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere. English names variously applied to different species include poplar , aspen, and cottonwood....

s, balsam poplar

Balsam poplar

The balsam poplars — also known as Populus sect. Tacamahaca — are a group of about 10 species of poplars, indigenous to North America and eastern Asia, distinguished by the balsam scent of their buds, the whitish undersides of their leaves, and the leaf petiole being round in cross-section...

s, aspen

Aspen

Populus section Populus, of the Populus genus, includes the aspen trees and the white poplar Populus alba. The five typical aspens are all native to cold regions with cool summers, in the north of the Northern Hemisphere, extending south at high altitudes in the mountains. The White Poplar, by...

s, cottonwoods)

• Populus x acuminata (Lanceleaf cottonwood)
• Populus alba (White Poplar) - introduced
• Populus angustifolia
  Populus angustifolia
  Populus angustifolia is a species of poplar tree known by the common names Narrowleaf Cottonwood and Willow-leaved Poplar. This tree is native to the Great Basin in the United States where it is most often found by streams and creeks at some elevation.The tree is slim in profile, with yellow-green...
  
  (Narrowleaf cottonwood)
• Populus balsamifera
  Populus balsamifera
  Populus balsamifera, commonly called balsam poplar, bamtree, eastern balsam poplar, hackmatack, tacamahac poplar, tacamahaca,...
  
  (Eastern Balsam Poplar)
• Populus x canadensis (Carolina poplar) - introduced
• Populus deltoides (Eastern Cottonwood)
• Populus grandidentata
  Populus grandidentata
  Populus grandidentata — the large-tooth, or big-tooth, aspen — is a deciduous tree native to eastern North America.-Name:...
  
  (Bigtooth Aspen)
• Populus heterophylla
  Populus heterophylla
  Populus heterophylla, known as the Swamp Cottonwood, also called the River Cottonwood, Downy Poplar, Swamp Poplar, or Black Cottonwood which is actually Populus trichocarpa, is a large deciduous Poplar belonging to section Leucoides of the larger Salindaceae family, found in wet bottom land...
  
  (Swamp cottonwood)
• Populus x jackii (Jack's hybrid poplar)
• Populus nigra (Black Poplar, Lombardy poplar) - introduced
• Populus simonii (Simon's poplar)
• Populus tremuloides
  Populus tremuloides
  Populus tremuloides is a deciduous tree native to cooler areas of North America, commonly called quaking aspen, trembling aspen, American aspen, and Quakies,. The trees have tall trunks, up to 25 metres, with smooth pale bark, scarred with black. The glossy green leaves, dull beneath, become golden...
  
  (Trembling Aspen)
• Populus trichocarpa
  Populus trichocarpa
  Populus trichocarpa is a deciduous broadleaf tree species native to western North America. It is used for timber, and is notable as a model organism in plant biology. Its full genome sequence was published in 2006...
  
  (Black Cottonwood)

Prunus

Prunus

Prunus is a genus of trees and shrubs, which includes the plums, cherries, peaches, apricots and almonds. There are around 430 species spread throughout the northern temperate regions of the globe. Many members of the genus are widely cultivated for fruit and ornament.-Botany:Members of the genus...

(cherries

Cherry

The cherry is the fruit of many plants of the genus Prunus, and is a fleshy stone fruit. The cherry fruits of commerce are usually obtained from a limited number of species, including especially cultivars of the wild cherry, Prunus avium....

, plum

Plum

A plum or gage is a stone fruit tree in the genus Prunus, subgenus Prunus. The subgenus is distinguished from other subgenera in the shoots having a terminal bud and solitary side buds , the flowers in groups of one to five together on short stems, and the fruit having a groove running down one...

s, peach

Peach

The peach tree is a deciduous tree growing to tall and 6 in. in diameter, belonging to the subfamily Prunoideae of the family Rosaceae. It bears an edible juicy fruit called a peach...

es)

• Prunus americana
  Prunus americana
  Prunus americana, commonly called the American Plum, Wild Plum, or Marshall's Large Yellow Sweet Plum, is a species of Prunus native to North America from Saskatchewan to New Mexico east to New Hampshire and Florida. It has often been planted outside its core range and sometimes escapes cultivation...
  
  (American plum)
• Prunus armeniaca (Apricot) - introduced
• Prunus avium
  Prunus avium
  Prunus avium, commonly called wild cherry, sweet cherry, bird cherry, or gean, is a species of cherry, native to Europe, west Turkey, northwest Africa, and western Asia, from the British Isles south to Morocco and Tunisia, north to the Trondheimsfjord region in Norway and east to the Caucasus, and...
  
  (Sweet cherry) - introduced
• Prunus cerasus (Sour cherry) - introduced
• Prunus emarginata (Bitter cherry)
• Prunus maackii
  Prunus maackii
  Prunus maackii, commonly called the Manchurian cherry or Amur chokecherry, is a species of cherry native to Korea and both banks of the Amur River, in Manchuria in northeastern China, and Amur Oblast and Primorye in southeastern Russia....
  
  (Amur chokecherry) - introduced
• Prunus nigra
  Prunus nigra
  Prunus nigra is a species of Prunus, native to eastern North America from New Brunswick west to southeastern Manitoba, and south to Connecticut across to Iowa...
  
  (Canada plum)
• Prunus pensylvanica (Pin cherry)
• Prunus serotina (Black cherry)
• Prunus serrulata
  Prunus serrulata
  Prunus serrulata or Japanese Cherry; also called Hill Cherry, Oriental Cherry or East Asian Cherry, is a species of cherry native to Japan, Korea and China. It is known for its spring cherry blossom displays and festivals....
  
  (Japanese flowering cherry) - introduced
• Prunus virginiana (Chokecherry)

Ptelea

• Ptelea trifoliata (Hoptree)

Pyrus (pears)

• Pyrus communis (Common pear)

Quercus (oaks)

• Quercus alba (White oak)
• Quercus bicolor (Swamp white oak)
• Quercus coccinea (Scarlet oak)
• Quercus ellipsoidalis (Northern pin oak)
• Quercus garryana (Garry oak)
• Quercus ilicifolia (Bear oak)
• Quercus imbricaria (Shingle oak)
• Quercus macrocarpa (Bur oak)
• Quercus montana (Chestnut oak)
• Quercus muehlenbergii (Chinquapin oak)
• Quercus palustris (Pin oak)
• Quercus prinoides
  Quercus prinoides
  Quercus prinoides, commonly known as Dwarf Chinkapin Oak, Dwarf Chinquapin Oak, Dwarf Chestnut Oak or Scrub Chestnut Oak, is a shrubby, clone-forming oak native to eastern North America, ranging from Massachusetts to the Carolinian forest zone of southern Ontario to Minnesota, south to North...
  
  (Dwarf chinquapin oak)
• Quercus robur (English oak) - introduced
• Quercus rubra (Northern red oak)
• Quercus shumardii (Shumard oak)
• Quercus velutina (Black oak)

Rhamnus (buckthorns)

• Rhamnus cathartica
  Rhamnus cathartica
  Rhamnus cathartica , is a species in the family Rhamnaceae, native to Europe, northwest Africa, and western Asia, from the central British Isles south to Morocco, and east to Kyrgyzstan...
  
  (European buckthorn) - introduced
• Rhamnus frangula
  Rhamnus frangula
  Frangula alnus, syn. Rhamnus frangula, the Alder Buckthorn, is a tall deciduous shrub in the family Rhamnaceae. It is native to Europe, northernmost Africa, and western Asia, from Ireland and Great Britain north to 68°N in Scandinavia, east to central Siberia and Xinjiang in western China, and...
  
  (Glossy buckthorn) - introduced
• Rhamnus purshiana
  Rhamnus purshiana
  Rhamnus purshiana Rhamnus purshiana Rhamnus purshiana (Cascara Buckthorn, Cascara, Bearberry, and in the Chinook Jargon, Chittam or Chitticum; syn...
  
  (Cascara buckthorn)

Rhododendron

Rhododendron

Rhododendron is a genus of over 1 000 species of woody plants in the heath family, most with showy flowers...

(rhododendrons)

• Rhododendron macrophyllum
  Rhododendron macrophyllum
  Rhododendron macrophyllum, the Pacific Rhododendron, Coast Rhododendron or Big Leaf Rhododendron, is a broadleaf evergreen rhododendron species native to western North America.-Distribution:...
  
  (Pacific rhododendron)
• Rhododendron maximum
  Rhododendron maximum
  Rhododendron maximum — also called great rhododendron, great laurel, rosebay rhododendron, American rhododendron or big rhododendron — is a species of Rhododendron native to eastern North America, from Nova Scotia south to northern Alabama.-Description:R. maximum is an evergreen shrub growing to 4...
  
  (Rosebay rhododendron) - introduced
• Rhododendron ponticum
  Rhododendron ponticum
  Rhododendron ponticum, called Common Rhododendron or Pontic Rhododendron, is a species of Rhododendron native to southern Europe and southwest Asia.-Description:...
  
  (Pontic rhododendron) - introduced

Rhus (sumacs)

• Rhus copallina
  Rhus copallina
  Rhus copallina , Shining Sumac or Winged Sumac, is a species of flowering plant in the cashew family that is native to eastern North America. It is a deciduous tree growing to tall and an equal spread with a rounded crown...
  
  (Shining sumac)
• Rhus glabra
  Rhus glabra
  Rhus glabra is a species of sumac in the family Anacardiaceae, native to North America, from southern Quebec west to southern British Columbia in Canada, and south to northern Florida and Arizona in the United States and Tamaulipas in northeastern Mexico.One of the easiest shrubs to identify...
  
  (Smooth sumac)
• Rhus typhina
  Rhus typhina
  The Staghorn Sumac is a deciduous shrub to small tree in the Anacardiaceae or Cashew family, native to eastern North America...
  
  (Staghorn sumac)

Robinia

Robinia

Robinia is a genus of flowering plants in the family Fabaceae, subfamily Faboideae, native to North America and northern Mexico. Commonly known as "locusts", they are deciduous trees and shrubs growing 4-25 m tall. The leaves are pinnate with 7-21 oval leaflets. The flowers are white or pink, in...

• Robinia pseudoacacia (Black locust) - introduced

Sassafras

Sassafras

Sassafras is a genus of three extant and one extinct species of deciduous trees in the family Lauraceae, native to eastern North America and eastern Asia.-Overview:...

• Sassafras albidum
  Sassafras albidum
  Sassafras albidum is a species of Sassafras native to eastern North America, from southern Maine and southern Ontario west to Iowa, and south to central Florida and eastern Texas. It occurs throughout the eastern deciduous forest habitat type, at altitudes of sea level up to 1,500 m...
  
  (Sassafras)

Salix (willows) - too many species to list.

Sambucus (elder)

• Sambucus callicarpa (Red-berry elder)
• Sambucus canadensis
  Sambucus canadensis
  Sambucus canadensis is a species of elderberry native to a large area of North America east of the Rocky Mountains, and south through eastern Mexico and Central America to Panama. It grows in a variety of conditions including both wet and dry soils, primarily in sunny locations.-Growth:It is a...
  
  (American elder)
• Sambucus cerulea
  Sambucus cerulea
  Sambucus cerulea, common name Blue Elderberry and Blue Elder, is a coarse shrub species of elder in the family Adoxaceae.The taxonomy of this species is in dispute, and it can be referred to by several different names. The USDA lists it as Sambucus nigra ssp...
  
  (Blue-berry elder)
• Sambucus melanocarpa (Black-berry elder)
• Sambucus pubens (Eastern red-berry elder)

Shepherdia

• Shepherdia argentea
  Shepherdia argentea
  Shepherdia argentea is a species of Shepherdia, native to central North America from southern Canada south in the United States to northern California and New Mexico.It is a deciduous shrub growing to 2–6 m tall...
  
  (Silver buffalo-berry)

Sorbus

Sorbus

Sorbus is a genus of about 100–200 species of trees and shrubs in the subfamily Maloideae of the Rose family Rosaceae. Species of Sorbus are commonly known as whitebeam, rowan, service tree, and mountain ash...

(rowans)

• Sorbus americana
  Sorbus americana
  The tree species Sorbus americana is commonly known as the American Mountain-ash. It is a relatively small deciduous perennial tree, native to eastern northern North America....
  
  (American Rowan or mountain-ash)
• Sorbus aucuparia
  Sorbus aucuparia
  Sorbus aucuparia , is a species of the genus Sorbus, native to most of Europe except for the far south, and northern Asia...
  
  (European rowan) - introduced
• Sorbus decora
  Sorbus decora
  Sorbus decora, commonly known as the showy mountain-ash or "dogberry" is a deciduous shrub or very small tree native to northeastern North America. It occurs throughout the Great Lakes-St...
  
  (Showy Rowan or mountain-ash)
• Sorbus sitchensis
  Sorbus sitchensis
  Sorbus sitchensis, also known as Sitka Mountain-ash, is a small shrub of the western United States.-Description:A multistemmed shrub, it is indigenous to the Pacific Coast of North America, from Alaska to northern California and eastward to Idaho and western Montana.The otherwise similar Sorbus...
  
  (Sitka Rowan or mountain-ash)

Syringa

• Syringa vulgaris (Common lilac)

Tilia

Tilia

Tilia is a genus of about 30 species of trees native throughout most of the temperate Northern Hemisphere. The greatest species diversity is found in Asia, and the genus also occurs in Europe and eastern North America, but not western North America...

(lindens)

• Tilia americana
  Tilia americana
  Tilia americana is a species of Tilia native to eastern North America, from southeast Manitoba east to New Brunswick, southwest to northeast Texas, and southeast to South Carolina, and west along the Niobrara River to Cherry County, Nebraska...
  
  (Basswood)
• Tilia cordata
  Tilia cordata
  Tilia cordata is a species of Tilia native to much of Europe and western Asia, north to southern Great Britain , central Scandinavia, east to central Russia, and south to central Spain, Italy, Bulgaria, Turkey, and the Caucasus; in the south of its range it is restricted to...
  
  (Little-leaf linden) - introduced
• Tilia tomentosa
  Tilia tomentosa
  Tilia tomentosa is a species of Tilia native to southeastern Europe and southwestern Asia, from Hungary and the Balkans east to western Turkey, occurring at moderate altitudes....
  
  (Silver linden) - introduced

Toxicodendron

Toxicodendron

Toxicodendron a genus of flowering plants in the sumac family, Anacardiaceae. It contains woody trees, shrubs and vines, including poison ivy, poison oak, and the lacquer tree. All members of the genus produce the skin-irritating oil urushiol, which can cause a severe allergic reaction...

• Toxicodendron vernix (Poison-sumac)

Ulmus (elms)

• Ulmus americana (American elm or White elm)
• Ulmus glabra (Wych elm) - introduced
• Ulmus procera (English elm) - introduced
• Ulmus pumila (Siberian elm) - introduced
• Ulmus rubra
  Ulmus rubra
  Ulmus rubra, the Slippery Elm, is a species of elm native to eastern North America...
  
  (Slippery elm)
• Ulmus thomasii (Rock elm)

Viburnum

Viburnum

Viburnum is a genus of about 150–175 species of shrubs or small trees in the moschatel family, Adoxaceae. Its current classification is based on molecular phylogeny...

(viburnums)

• Viburnum edule
  Viburnum edule
  Viburnum edule, the squashberry, mooseberry, pembina, pimbina, highbush cranberry, lowbush cranberry or moosomin in Cree language, is a small shrub species.-See also:* Trees of Canada* List of Canadian plants by family C...
  
  (Squashberry)
• Viburnum lantana
  Viburnum lantana
  Viburnum lantana is a species of Viburnum, native to central, southern and western Europe , northwest Africa, and southwestern Asia. The vigorous deciduous european treelike shrub is common along waysides. It is a deciduous shrub or small tree growing to 4-5 m tall...
  
  (Wayfaring-tree) - introduced
• Viburnum lentago
  Viburnum lentago
  Viburnum lentago is a species of Viburnum native to the northeastern and midwestern United States, and in southern Canada from New Brunswick west to southeastern Saskatchewan. Isolated populations are found in the Dakotas, Wyoming, Colorado, and the Appalachian Mountains as far south as Kentucky...
  
  (Sweet viburnum, nannyberry)
• Viburnum opulus
  Viburnum opulus
  Viburnum opulus is a species of Viburnum, native to Europe and Asia. Some botanists also treat the closely related North American species Viburnum trilobum as a variety of it , or a subspecies, Viburnum opulus subsp...
  
  (Wayfaring tree) - introduced
• Viburnum trilobum
  Viburnum trilobum
  Viburnum trilobum is a species of Viburnum native to northern North America, from Newfoundland west to British Columbia, south to Washington state and east to northern Virginia, with an isolated population in New Mexico...
  
  (Highbush cranberry)

Zanthoxylum

Zanthoxylum

Zanthoxylum is a genus of about 250 species of deciduous and evergreen trees and shrubs in the citrus or rue family, Rutaceae, native to warm temperate and subtropical areas worldwide. Common names include Prickly-ash and Hercules' Club.The fruit of several species are used to make the spice...

(Zanthoxylums, prickly-ashes)

• Zanthoxylum americanum
  Zanthoxylum americanum
  Zanthoxylum americanum, the Common Prickly-ash, Common Pricklyash, Common Prickly Ash or Northern Prickly-ash , is an aromatic shrub or small tree native to central and eastern portions of the United States and Canada...
  
  (Common prickly-ash)
• Zanthoxylum clava-herculis
  Zanthoxylum clava-herculis
  Zanthoxylum clava-herculis, the Hercules' Club , pepperwood, or Southern prickly ash, is a spiny tree or shrub native to the southeastern United States. It grows to 10-17 m tall and has distinctive spined thick, corky lumps 2-3 cm long on the bark...
  
  (Southern prickly-ash)

Zelkova

Zelkova

Zelkova is a genus of six species of deciduous trees in the elm family Ulmaceae, native to southern Europe, and southwest and eastern Asia. They vary in size from shrubs to large trees up to 35 m tall . The leaves are alternate, with serrated margins, and a symmetrical base to the leaf blade...

• Zelkova serrata
  Zelkova serrata
  Zelkova serrata is a species of Zelkova native to Japan, Korea, eastern China, and Taiwan. It is often grown as an ornamental tree, and used in bonsai.-Description:...
  
  (Japanese zelkova) - introduced